Cover Story
State Oriented Programming
by Miro Samek and Paul Montgomery
Implementing hierarchical state machines doesn1t mean you have to use code-synthesizing tools. Here are some techniques for simple,
efficient, and direct mapping of state machines to C or C++.
Featured Article
Modeling Dynamic Systems
by Jim Ledin
To develop a simulation of a complex dynamic system, you must first develop mathematical models of major system components, as well as of any significant interactions between the system and its operational environment. Here's an introduction to the development of mathematical models of dynamic systems.
Features
Pardon Me, Do You Have the Time?
by David Hinerman
Many systems need to know the current time. Take note of these helpful hints from a seasoned timekeeper.
Sensible Software Testing
by Sean Beatty
To find and kill bugs, you must know where they live. You can use knowledge about the sorts of errors found in a program and the risks they pose to select the most effective testing strategies.
Internet Appliance Design
Connecting...
Schedule Slips
by Michael Barr
A disk crash causes an unexpected schedule slip on the way to UDP/IP. A reflection on the computer industry results.
Articles
Linux, Interrupted
by Thomas Besemer
Every operating system has different mechanisms and approaches to handling interrupts. This article lays out the specifics of handling interrupts in Linux. It presents an overview of the Linux runtime environment, discusses how to communicate with hardware peripherals, and provides a working example of servicing an interrupt from
application code.
Network Talk: Voice Over IP
by Yashvant Jani
Voice over IP (VoIP) has a big place in the future of the Internet. This article tells you what software is required to support VoIP and how the system should be architected.
Embedded Internet Tools
New Internet appliance design products.
Columns + Departments
#include
The More Things Change
by Michael Barr
Spectra
Motor
Rotation Control
Increasingly, motor controls are passed over in favor of DSP control. Here1s a primer on the behaviors that can be controlled.
by Don Morgan
Break Points
Radio Days
Of late, the government has been doing some things for technologists. But maybe we1re doing ourselves a disservice by overspecializing.
by Jack G. Ganssle
New Product Gallery
